replies to DHCPv6 client as DHCPv6 server. can give the following information to clients.

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IPv6 prefixes for the requesting site

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Non-temporary IPv6 addresses

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A list of the DNS server addresses

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DNS Domain Search List

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A list of the NTP server addresses

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A list of the SIP server addresses

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SIP Server domain name

Command line options are as below:

-c configfile

Use configfile as the configuration file.

-d

Print debugging messages.

-D

Even more debugging information is printed.

-f

Foreground mode (useful when debugging). Although usually prints warning, debugging, or error messages to syslog(8) , it prints the messages to standard error if this option is specified.

-k ctlkeyfile

Use ctlkeyfile to store the shared secret to authenticate the communication with dhcp6sctl . The default file name used when unspecified is /etc/dhcp6sctlkey . The default name is intentionally same as that for dhcp6sctl so that the server and the control command can share the file when dhcp6sctl controls the server on the same node, which should be the typical case.

-p ctlport

Use ctlport as the port number listening on to communicate with dhcp6sctl .

/etc/dhcp6s.conf

is the default configuration file.

/var/lib/dhcpv6/dhcp6s_duid

is the default file to store the server's DUID.

/etc/dhcp6sctlkey

is the default key file to communicate with the control command. See dhcp6sctl() for the file format.

The command first appeared in WIDE/KAME IPv6 protocol stack kit.

The -n dnsserv command-line option was obsoleted by introducing a configuration file.

is incomplete and violates DHCPv6 protocol spec, in several aspects. To name a few:

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it does not assign temporary IPv6 addresses

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Some of useful option type values are still not officially assigned. The current implementation uses experimental values, which may cause interoperability problems with other implementations.